Diiodomethane → HCID 90418906, compound

Participants

Reaction Steps

To CH2Cl2 (20 mL) at 0° C. was added 1M solution of diethylzinc in hexane (11.75 mL, 11.75 mmol), followed by dropwise addition of a solution of trifluoroacetic acid (0.6 mL, 7.83 mmol) in CH2Cl2 (8 mL). After stirring for 15 min, a solution of diiodomethane (0.65 mL, 7.83 mmol) in CH2Cl2 (8 mL) was added. The mixture was stirred for 15 min and a clear solution resulted. tert-Butyl 4-hydroxy-4-(2-methylallyl)piperidine-1-carboxylate (12B) (1 g, 3.92 mmol) was added and the mixture was stirred at room temperature overnight. After quenching with 0.1 M aqueous HCl (50 mL), the CH2Cl2 layer was separated, washed with brine, dried (Na2SO4) and concentrated to give the crude product, which was used directly for the next step without purification.

Provenance & Evidence